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Clean Air Act stationary source · ICIS-AIR NJ00061540

NRG HEADQUARTERS DG, Princeton, NJ: Clean Air Act compliance record, inspections, violations, penalties

NRG HEADQUARTERS DG, at 804 CARNEGIE CENTER BLVD, Princeton in Mercer County, New Jersey, is an operating synthetic minor source of air pollution on EPA’s ICIS-AIR register. EPA’s file records its current violation status (ICIS-AIR’s high-priority violation field) as “Violation w/in 1 Year”. Mercer County is on EPA’s Green Book list of areas that do not meet a national air quality standard. The status and classification are as EPA’s facility file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the source’s current standing, quarter by quarter.

Identity

Facility as filedNRG HEADQUARTERS DG
ICIS-AIR IDNJ00061540
EPA facility registry ID110070144412
Operating statusOperating
Emissions classificationSynthetic minor source
Current violation status (ICIS-AIR high-priority violation field)Violation w/in 1 Year
Address804 CARNEGIE CENTER BLVD, Princeton, NJ 08540
CountyMercer County
In a nonattainment countyYes (EPA Green Book)
Industry (NAICS)Real estate (NAICS 5311)
EPA region02

Cited to the EPA ICIS-AIR facility file (ECHO download).

Programs and pollutants

Velarion’s copy of EPA’s ICIS-AIR download does not include its program, pollutant and Title V certification files, so this page does not list the Clean Air Act programs NRG HEADQUARTERS DG is under or the pollutants it is permitted for. The programs each evaluation and violation below was recorded under are shown with it. EPA’s free Detailed Facility Report lists both.

Compliance evaluations

DateWhat EPA recordedAgencyPrograms
September 30, 2025FCE On-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
September 29, 2017FCE On-SiteStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Violations

A high-priority violation (HPV) is the most serious class of Clean Air Act non-compliance an agency records; a federally reportable violation (FRV) is the next step down. Each row is one determination as EPA’s violation history files it.

DateWhat EPA recordedAgencyPrograms
October 2, 2025Earliest FRV determinationStateState Implementation Plan for National Primary and Secondary Ambient Air Quality Standards
October 2, 2025Earliest FRV determinationStateNew Source Performance Standards; State Implementation Plan for National Primary and Secondary Ambient Air Quality Standards

Enforcement and penalties

1 formal enforcement actions since January 1, 2017, 1 of them with a penalty filed above zero. Each penalty is shown as EPA’s formal action file states it; “Not stated” means the file gives no figure, and $0 is a disclosed zero.

DateWhat EPA recordedAgencyPenalty, as filed
May 21, 2026Administrative OrderState$3,240

Informal enforcement

DateWhat EPA recordedAgency
April 1, 2026Notice of ViolationState
May 18, 2023Notice of ViolationState
November 27, 2017Notice of ViolationState

Stack tests

DateWhat EPA recordedAgency
October 1, 2024FailState
June 30, 2020PassState
November 1, 2018FailState
November 1, 2018FailState
September 20, 2018PassState

Cited to the EPA ICIS-AIR evaluation, violation, stack test and enforcement files (ECHO download), events dated January 1, 2017 or later as loaded; up to 50 rows of each shown, newest first.

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EPA publishes a free Detailed Facility Report for every source on ECHO: its compliance status quarter by quarter, its evaluations, and its violations, enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter EPA facility registry ID 110070144412 there.

Nearby on the register

Figures from EPA’s ICIS-AIR download, loaded September 14, 2026.

What this page shows

This public-records page covers the Clean Air Act compliance record for NRG HEADQUARTERS DG, ICIS-AIR NJ00061540, an operating synthetic minor source in Mercer County, New Jersey. The listed figures are 2 compliance evaluations since January 1, 2017, 0 high-priority violations since January 1, 2017, and 1 formal enforcement action since January 1, 2017, with a current violation status of "Violation w/in 1 Year."

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